import { asyncRoutes, constantRoutes } from '@/router'
import Layout from '@/layout'
import { getSystemMenu } from '@/api/user'

import store from './user'
/**
 * Use meta.role to determine if the current user has permission
 * @param roles
 * @param route
 */
function hasPermission(roles, route) {
  if (route.meta && route.meta.roles) {
    return roles.some(role => route.meta.roles.includes(role))
  } else {
    return true
  }
}
/**
 * 后台查询的菜单数据拼装成路由格式的数据
 * @param routes
 */
export function generaMenu(routes, data) {
  data.forEach(item => {
    let name = item.path
    console.log(name)
    name = item.path.trim().toLowerCase().replace(item.path[0], item.path[0].toUpperCase())
    // console.log('组件名name==>', name)
    // console.log('组件路径==》', item.component)
    const menu = {
      path: item.path,
      component:
        item.component === 'Layout'
          ? Layout : (resolve) => require([`@/views/${item.component}.vue`], resolve),
      hidden: item.hidden || false,
      redirect: item.redirect || 'noRedirect',
      children: [],
      name: name,
      meta: { title: item.title, icon: item.icon }
      // meta: { title: item.name, id: item.id, roles: ['admin'] }
    }
    if (item.children) {
      generaMenu(menu.children, item.children)
    }

    routes.push(menu)
  })
}
/**
 * Filter asynchronous routing tables by recursion
 * @param routes asyncRoutes
 * @param roles
 */
export function filterAsyncRoutes(routes, roles) {
  const res = []

  routes.forEach(route => {
    const tmp = { ...route }
    if (hasPermission(roles, tmp)) {
      if (tmp.children) {
        tmp.children = filterAsyncRoutes(tmp.children, roles)
      }
      res.push(tmp)
    }
  })

  return res
}

const state = {
  routes: [],
  addRoutes: []
}

const mutations = {
  SET_ROUTES: (state, routes) => {
    state.addRoutes = routes
    state.routes = constantRoutes.concat(routes)
  }
}

const actions = {
  generateRoutes({ commit }, roles) {
    return new Promise(resolve => {
      const loadMenuData = []
      // 获取菜单
      getSystemMenu()
        .then(response => {
          let data = response
          console.log('响应路由==》', data)
          if (response.code !== 1) {
            alert(JSON.stringify('菜单数据加载异常'))
            // throw new Error('菜单数据加载异常') 
          } else {
            data = response.data
            Object.assign(loadMenuData, data)

            const tempAsyncRoutes = Object.assign([], asyncRoutes)
            // const tempAsyncRoutes = []
            console.log('响应路由=loadMenuData=》', loadMenuData)
            console.log('本地动态路由=tempAsyncRoutes》', tempAsyncRoutes)
            // tempAsyncRoutes = Object.assign(tempAsyncRoutes,data.route)
            // tempAsyncRoutes = asyncRoutes
            generaMenu(tempAsyncRoutes, loadMenuData)

            console.log('递归处理后的路由==', tempAsyncRoutes)
            // let accessedRoutes
            // if (roles.includes('超级管理员')) {
            //   // alert(JSON.stringify(asyncRoutes))
            //   accessedRoutes = tempAsyncRoutes || []

            // } else {
            //   accessedRoutes = filterAsyncRoutes(tempAsyncRoutes, roles)
            // }
            // accessedRoutes = filterAsyncRoutes(tempAsyncRoutes, roles)
            console.log('权限过滤后==最终路由==', tempAsyncRoutes)
            commit('SET_ROUTES', tempAsyncRoutes)
            const router = JSON.stringify(tempAsyncRoutes)
            localStorage.setItem('router', router)
            resolve(tempAsyncRoutes)
          }
        })
        .catch(error => {
          console.log(error)
        })
    })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
